== Common ROM Bank Numbers ==
00h BASIC (or AMSDOS, depending on LK1 on the DDI-1 board) 07h AMSDOS (or BASIC, depending on LK1 on the DDI-1 board)
00h..07h Bootable ROMs on CPC 464/664/6128 (KL_ROM_WALK)
08h..0Fh Bootable ROMs on CPC 664/6128 (KL_ROM_WALK)
10h..FFh Non-bootable ROMs (or secondary banks of Bootable ROMs)
FCh..FFh Can be used, but aren't accessible by BIOS functions
FFh BASIC (or ROM with similar ID; for the crude 128K RAM-size detection in CP/M+)
== Other Bank Numbers ==